I agree with George. If you decide you want some HBG, it shouldn't matter where you source them from. Understand the fish and it's needs, and they'll grow large for you, no pedigree needed.

Pound and a half, source was a fish truck:




Another, this one with a relative weight of over 170%



Like most everything else pond related, I believe it comes down to defining one's goals, understanding what's involved in attaining those goals, and diligently working towards making those goals a reality.

"Forget pounds and ounces, I'm figuring displacement!"

If we accept that: MBG(+)FGSF(=)HBG(F1)
And we surmise that: BG(>)HBG(F1) while GSF(<)HBG(F1)
Would it hold true that: HBG(F1)(+)AM500(x)q.d.(=)1.5lbGRWT?
PB answer: It depends.